JP3506051B2 - Door closure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door closing device which can close and open a door by rotating an operating body.

[0002]

2. Description of the Related Art Conventionally, a door closing tool 101 as shown in FIG. 13 has been used. As shown in FIG. 13 (a), the door closing tool 101 includes the projection 1 at the upper end of the operating body 102.
13 is pressed to project one end of the rod-shaped operating body 102 as shown in FIG. 13B, and in this state, the tip of the operating body 102 is rotated as shown in FIG. 10
A locking plate (not shown) that interlocks with 2 is projected and retracted. In this door closing tool 101, the operating body 1 is functionally
02 requires a certain length.

[0003]

However, in the above-mentioned conventional technique, the distance between the tip of the operating body 102 and the rotation center point 104 is long, and the tip of the operating body 102 moves when the operating body 102 is operated. It is necessary to widen the distance between the rotation center point 104 of the operating body 102 and the device so as not to contact the device arranged on the door surface. Therefore, it has been an obstacle in miniaturizing the door and the box body to which the door is fixed.

Accordingly, the present invention has been made in view of the above circumstances, and an object thereof is to provide a door closing device which does not require a large space for operating the operating body.

[0005]

In order to achieve the above object, in the door closing device of the present invention, a storage portion communicating from the front side to the back side is formed, and the door closing device is attached in a state of penetrating the door. And a case that is disposed so as to be urged in the housing part of the case so as to project, and each time the front surface is pushed, the front surface is held at the operating position where the front surface projects from the housing part or the housing position where the front surface is housed in the housing part. An operating body that is rotatable within the area of the front surface of the storage portion when in the operating position, and a lock that closes and opens the door by projecting and retracting in conjunction with the rotational operation of the operating body. And a plate to form a door closing device.

According to this door closing tool, each time the front surface of the operating body is pressed, the operating body is held in the operating position in which the front end of the operating body projects from the storage section, and the operating body is located at the front of the storage section in the operating position. Since it can be rotated within the area, the hand that operates the operating body will rotate only at that position, and it does not require a large space around it, so various devices are installed near the door stopper on the door surface. can do. As a result, the door can be downsized. Further, when the operating body is not operated, it can be positioned at the storage position, and the operating body can be prevented from being caught by a passerby.

Further, the case has a case main body having an inner peripheral wall for accommodating the operating body therein and is arranged on the back side of the door, and a front side of the case main body is arranged on the front side of the door. A lid, and the operating body is formed with an ear piece projecting outward from the inner periphery of the storage portion, and the inner peripheral wall of the case body is
A guide groove for guiding the ear piece is formed between the storage position and the operation position of the operation body, and the lid body is provided with the tip of the inner peripheral wall of the case main body in a state where the operation body is in the operation position. It is also preferable to form an edge portion that slidably holds the ear piece.

According to this, when the operating body is in the operating position, the ear piece of the operating body is held between the tip of the inner peripheral wall of the housing portion of the case body and the edge portion of the lid body. The operating body does not come off from the case when the body is in the operation position protruding from the storage portion. Further, the operating body can be arranged by inserting the operating body from the front side into the storage portion of the case main body, and then attaching the lid body, thereby simplifying the mounting work of the operating body.

Further, at the tip of the inner peripheral wall, there is formed a rotation preventing portion for preventing the rotation of the operating body by contact with the ear piece when the locking plate is in the projecting position and the retracting position, respectively. Is also preferable.

According to this, the side surface of the ear piece of the operating body comes into contact with the rotation preventing portion and does not rotate any more, so that it is easy for the locking plate for closing the door to be in the protruding position and the retracted position, respectively. Can be recognized by.

Further, one side of the guide groove is connected to one rotation preventing portion with which the ear piece abuts when the locking plate is in the protruding position, and the locking plate is in the retracted position while the locking plate is in the retracted position. It is also preferable that a rotation guide wall that guides the ear piece and maintains the protruding position of the operating body is formed from the other rotation blocking portion with which the piece abuts to the other side of the guide groove.

According to this, in the process of the operation of projecting and retracting the locking plate, the operating body does not inadvertently retract into the storage portion.

It is also preferable that the outside of the front surface of the lid body is gradually inclined toward the front surface side of the door.

According to this, it becomes difficult for the hand to touch the lid when the operating body is rotated.

Further, it is also preferable that the front end side of the operating body has a side surface formed in a substantially saw-toothed shape to prevent slippage.

According to this, when the operation body is rotated,
It becomes less slippery and the rotating operation of the operating body becomes easier.

It is also preferable that the front surface of the operating body has a locking hole for a key for preventing the operating body in the storage position from protruding and a rotatable locking portion is formed.

According to this, by locking the operating body at the storage position by rotating the key, the operating body can be fixed at the storage position.

In addition, the operating body is provided in the storage portion and drives the locking plate, the operating body is provided with the locking hole provided on the front side of the operating body, and the locking body is provided. A front cover that has a through hole through which a key is inserted in correspondence with the locking hole of the operation part and that holds the locking part rotatably between itself and the operation body, and the insertion hole is locked by the locking part. The large diameter part that allows the tip of the key to pass through the insertion hole when in the locked and unlocked position, and the tip of the key that cannot be inserted through the insertion hole when the locking part is in a position other than the locked position and the unlocked position. It is also preferable that it is formed in a shape having a small diameter portion that enables it.

According to this, when the key is inserted into the locking hole and the locking or unlocking operation is performed, the key cannot be removed from the locking hole when the locking portion is at a position other than the locking position and the unlocking position. Therefore, when the key is operated, the locked position and the unlocked position can be clarified.

Further, the front cover may be provided with an identification hole, and the locking portion may be provided with an identification display for facing the identification hole to identify when the locking portion is in the locking position and when it is in the unlocking position. preferable.

According to this, the locked position and the unlocked position of the key can be easily discriminated.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Regarding one embodiment of the present invention,
It will be described with reference to FIGS. 1 to 12.

In the door closing tool 1 of the present embodiment, the storage portion 2 which communicates from the front side to the back side is formed,
A case 4 attached in a state of penetrating the door 3, and a case 4 arranged so as to be urged in a projecting direction into the housing portion 2 of the case 4,
Each time the front surface is pushed, the front surface is held at the operating position protruding from the storage portion 2 or the storage position stored in the storage portion 2, and when the front surface is pushed, the front surface of the storage portion 2 rotates within the area. A movable operating body 5 and a locking plate 6 that projects and retreats in conjunction with the rotating operation of the operating body 5 to close and open the door 3 are provided. Further, the case 4 has an inner peripheral wall 10 for accommodating the operating body 5 therein, and a case body 7 disposed on the back surface side of the door 3, and a front surface side of the case body 7 on the front surface side of the door 3. The operating body 5 is formed with an ear piece 9 projecting outward from the inner circumference of the storage section 2.
The inner peripheral wall 10 of the case body 7 has a guide groove 11 for guiding the ear piece 9 between the storage position and the operation position of the operating body 5.
And an edge portion 12 for slidably holding the ear piece 9 between the lid body 8 and the tip of the inner peripheral wall 10 of the case body 7 in the state where the operating body 5 is in the operating position. To form.

Further, at the tip of the inner peripheral wall 10, when the locking plate 6 is in the protruding position and the retracted position, respectively, the ear piece 9 is formed.
Forms a rotation blocking portion 13 that blocks the rotation of the operating body 5 by contacting with each other. Further, one side 11a of the guide groove is connected to one rotation preventing portion 13a with which the ear piece 9 contacts while the locking plate 6 is in the protruding position, and the locking plate 6 is in the retracted position. The other rotation blocking portion 13 with which the ear piece 9 abuts in this state
A rotating guide wall 14 is formed from b to the other side 11b of the guide groove to guide the ear piece 9 and maintain the protruding position of the operating body 5. Further, the lid body 8 has a door 3 on the outside of its front surface.
Gradually incline to the surface side.

Further, the side surface on the front end side of the operating body 5 is formed in a substantially saw-toothed shape to prevent slippage. Further, on the front surface of the operation body 5, there is formed a lockable portion 16 having a lock hole 15 for a key for preventing the operation body 5 in the storage position from protruding. Further, the operating body 5 has an operating body 17 arranged in the housing 2 for driving the locking plate 6, and the locking portion 16 having a locking hole 15 arranged on the front side of the operating body 17.
And a front cover 19 which has an insertion hole 18 through which a key is inserted corresponding to the locking hole 15 of the locking portion 16 and which holds the locking portion 16 rotatably between itself and the operating body 17. The insertion hole 18 has a large-diameter portion 20 through which the tip of the key can be inserted into the insertion hole 18 when the locking portion 16 is in the locking position and the unlocking position, and the locking portion 16 is other than the locking position and the unlocking position. The tip of the key is formed in a shape having a small diameter portion 21 that cannot be inserted into the insertion hole 18 in the state of. Further, the identification hole 22 is formed in the front cover 19, and the locking portion 1
6 is provided with an identification display 23 that faces the identification hole 22 and identifies when the locking portion 16 is in the locking position and when it is in the unlocking position.

The door closing tool 1 of the present embodiment is attached to the door 3 of the distribution board, and as shown in FIG.
It is attached near the end of the door 3 whose surface is formed by drawing a curved surface. The door 3 is formed by bending a metal plate, and as shown in FIG. 12, it is attached so that its end portion covers the peripheral edge portion of the door 3 of the box 63. Door closure 1
When the locking plate 6 of FIG.
As described above, the door 3 can be closed by being inserted into the closing hole 62 formed in the box body 63.

The door closing device 1 comprises an operating body 5 and a case 4. As described above, the operating body 5 includes an operating body 17, a front cover 19 attached to the front end thereof, and an inside of the front cover 19. And a locking unit 16 provided. As shown in FIGS. 1 and 4, the operating body main body 17 has a cylindrical operating body main body tip portion 17a having a plurality of engaging teeth 24a extending in the longitudinal direction and a pair of ear pieces 9 on the outer periphery. The operating body main body base 17b is formed and has a double circular wall 28 formed on the upper surface.

As shown in FIG. 4, the distal end portion 17a of the main body of the operating body has a cylindrical shape, and one end of a coil spring 39 for urging the operating body 5 toward the front side of the door 3 is brought into contact therewith. The part 25 is formed. Further, a plurality of engaging teeth 24a are formed on one side of the surface. Four drive teeth 27, which are substantially right-angled triangular in a front view, are provided at the bottom inside the operation body main body tip 17a, which are pressed against the end of the spindle 26 inserted therein and rotate the spindle 26. Further, in the vicinity of the stepped portion 25 on the inner surface of the operation body main body tip portion 17a, a cylindrical engagement protrusion 61 as shown in FIG.
Are formed. The engagement protrusion 61 engages with the engaged protrusion 42 formed on the surface of the spindle 26 and holds the operating body 5 in the storage section 2.

The operating body main body base portion 17b has a disk shape with a recessed lower surface, and an ear piece 9 protruding in a substantially rectangular shape is formed on the outer periphery of the operating body main body base portion 17 at a symmetrical position with the center thereof facing outward. There is. The ear piece 9 is formed so as to project to the outside of the housing portion 2 of the case 4, and slides in the guide groove 11 to restrict the movement in the rotation direction when the operating body 5 appears and disappears, and It is possible to prevent the operating body 5 from rotating more than necessary by coming into contact with the rotation blocking portion 13 when the body 5 rotates. Further, the ear piece 9 is slidably held between the tip of the rotation guide wall 14 formed at the tip of the inner peripheral wall 10 of the storage section 2 and the edge 12 formed on the back surface of the lid body 8, Along with achieving a smooth rotation of the operating body 5, the operating body 5 is prevented from being abruptly retracted except when the locking plate 6 is in the projecting position. Furthermore, the operating body 5 is also prevented from falling off from the case 4.

The outer diameter of the disc-shaped operating body main body 17b is substantially the same as the inner diameter of the inner peripheral wall 10, and when the operating body 5 is pressed, it can slide inside the inner peripheral wall 10. The double circular wall 28 is erected on its upper surface, and a notch 29 is formed at the same position on the outer circular wall 28a and the inner circular wall 28b. As shown in FIG. 5, a cam 30 formed on the back surface of the locking portion 16 is inserted into the inner circular wall 28b. Also, the inner circular wall 2
On the opposite side of the cutout portion 29 at the upper end of 8b, a low height portion 31 is formed over approximately 180 degrees. The front cover 19 is fitted on the outer side of the outer circular wall 28a. The outer circular wall 28a is formed with elastic engaging pieces 32 at two positions as shown in FIG.
Engages with a square engagement hole 33 formed on the side surface of the front cover 19. As a result, the front cover 19 can be easily attached and the front cover 19 can be securely fixed. On the other hand, the front plate 34 of the locking portion 16 is rotatably inserted inside the outer circular wall 28a. Also,
The notch 29 of the circular wall 28 has the lock 16
A locking rod 35 is provided which comes into contact with the cam 30 on the rear surface of the and which is projected and retracted.

In the locking portion 16, the cam 30 is formed on the back surface of the disk-shaped front plate 34 as described above, and the front plate 3 is formed.
The surface of 4 is formed with a lock hole 15 into which the tip of the key is inserted. Further, as shown in FIG. 5, the operating body main body base portion 17b is provided with the locking rod 35 that comes into and out of contact with the cam 30 of the locking portion 16 and the spring 36 that biases the locking rod 35 in the retracting direction as described above. It is arranged as follows. Locking rod 3
As shown in FIG. 5, 5 has a bifurcated tip,
The spring 36 is arranged between them. This spring 36
It is provided so as to push the space between the front cover 19 and the base of the locking rod 35, and biases the locking rod 35 in the retracted direction as described above.

The cam 30 has a shape as shown in FIG.
When the locking portion 16 is in the locking position, as shown in FIG. 5 (a), the contact projection 37 at the rear end of the locking rod 35 comes into contact with the side where the cam 30 is bulged, so that the locking rod 35. 5B and the locking portion 16 is in the unlocked position, as shown in FIG. 5B, the abutment projection 37 at the rear end of the locking rod 35 abuts on the side where the cam 30 is depressed, and the locking rod 35 abuts. 35 immerses. At this time, since the locking rod 35 is biased by the spring 36 in the retracting direction, the locking rod 35 can be reliably retracted by the biasing force, and the tip of the abutting protrusion 37 is U-shaped. Since it is formed in a letter shape, the locking rod 35 can be smoothly pulled in and out.

The front plate 34 of the locking portion 16 is provided with an identification mark 23 facing the identification hole 22 of the front cover 19. In the present embodiment, this is configured by coloring the positions shown by the diagonal lines in FIG. When the locking portion 16 is rotated and is in the unlocked position, the identification mark 23 can be seen from the identification hole 22 of the front cover 19 and the color can be unlocked by changing the color to red or the like. You can clarify that you are in a position. On the other hand, the lock hole 15 is formed in an elongated shape corresponding to the shape of the tip of the key.

As shown in FIG. 1, the front cover 19 at the front end of the operating body 5 has a cylindrical cap shape, and the front surface thereof has a through hole 1 through which a key is inserted corresponding to the locking hole 15 of the locking portion 16.
8, the insertion hole 18 has a large diameter portion 20 through which the tip of the key can be inserted into the insertion hole 18 when the locking portion 16 is in the locking position and the unlocking position, and the locking portion 16 is in the locking position and the unlocking position. The tip of the key is formed in a shape having a small diameter portion 21 that cannot be inserted into the insertion hole 18 in a position other than the locked position. The shape of the insertion hole 18 is as shown in FIG. 6, and when the locking portion 16 is in the locking position or the unlocked position rotated by 180 degrees, the entire locking hole 15 is positioned inside the large diameter portion 20 and It is possible to insert and remove, and during the rotation of the locking portion 16 from the locking position to the unlocking position, one end of the elongated locking hole 15 is aligned with the edge portion 12 of the small diameter portion 21 as shown by a broken line in the figure. To be covered. At this time, the small diameter portion 2 on one side of the key
By forming a notch at the position corresponding to 1, when the key is in the process of rotating from the locked position to the unlocked position, the notch and the small diameter portion 21 engage with each other, making it impossible to remove the key. As a result, when the key is operated, the locked position and the unlocked position become clear, and the locking and unlocking can be reliably performed.

Further, on the back surface of the front plate 34 of the locking portion 16, there is formed a stopper 38 constituted by a prismatic projection, and the stopper 38 is formed on the inner circular wall 2
It moves above the low height portion 31 of 8b. When the locking portion 16 is in the locking position or the unlocking position, the stopper 38 comes into contact with the end surface of the inner circular wall 28b formed at the standard height, and the locking portion 16 exceeds the locking position or the unlocking position. Is prevented from rotating.

As shown in FIG. 1, the side surface of the front cover 19 on the front end side is formed in an uneven and substantially saw-toothed shape to prevent slippage. As a result, the operation body 5 is less likely to slip when it is rotated, so that the operation body 5 can be easily rotated and the door 3 can be easily closed and opened.

Further, the front cover 19 is provided with an identification hole 22 formed of a circular through hole, and the identification display 23 can be confirmed from the identification hole 22. The shape of the identification hole 22 and
The identification display 23 is not limited to this, and for example, the identification display 2
Characters such as “lock” and “unlock” may be described as 3, and the square identification hole 22 may be formed so that the characters can be confirmed.

The inside of the distal end portion 17a of the operating body is shown in FIG.
The spindle 26 and the coil spring 39 shown in are inserted. When the operating body 5 is in the operating state, the coil spring 39
The one end contacts the step portion 25 inside the operation body main body front end portion 17a, and the other end contacts the bottom portion 40 of the case 4, thereby urging the operation body 5 in the protruding direction. Further, when the operating body 5 is in the retracted state, the coil spring 39 moves the operating body 5
It is held in a compressed state by the stepped portion 25 of the.

At the end of the spindle 26, a drive bevel 41 is formed on which the drive teeth 27 inside the operating body 5 are pressed. When the operating body 5 is pressed, the drive teeth 27 move the drive slope 41.
The driving teeth 27 are slid on the driving slope 41, and the spindle 26 rotates.

The movements of the engaging projection 61 inside the operation body main body tip portion 17a and the spindle 26 will now be described with reference to FIG. FIG. 7 shows a state in which the spindle 26 is expanded, in which 27 is a driving tooth, 41 is a driving slope,
42 is an engaged projection, and 61a is an end surface of the engagement projection 61. Although the spindle 26 actually rotates, for convenience of description, instead of rotating the spindle 26, the end surface 61a of the engaging projection and the drive tooth 27 are slid rightward between the drawings. .

7 (a) to 7 (c) show the end surface 6 of the engaging projection when the operating body 5 moves from the housed state to the operated state.
1a shows the positional relationship between the engaged protrusion 42 of the spindle 26. FIG. 7A shows the position of the end surface 61 a of the engaging projection when the operating body 5 is at the storage position, and the engaging projection 61 engages with the locking step 43 of the engaged projection 42. However, the position of the operating body 5 is restricted (position A (symbol in each figure is shown; the same applies hereinafter)). At this time, the coil spring 3
9 is in a state of being compressed by the step portion 25 of the operating body 5. Figure 7
As shown in (b), here, the operation body 5 in the storage position.
When is further pressed, the end surface 61a of the engaging projection slides further downward (position B), and the drive teeth 27 are pressed against the drive slope 41 to rotate the spindle 26, so that the end surface 61a of the engaging projection relatively. Moves to the right in this figure (position C). Here, when the pressing force of the operating body 5 is released, as shown in FIG. 7C, the coil spring 39 pushes the operating body 5 upward by its urging force. At that time, the engaging protrusion 61 abuts the inclined surface 44 of the engaged protruding portion 42 (position D), slides on the inclined surface 44, and rotates the spindle 26 slightly, and the space between the engaged protruding portions 42, 42 is increased. To reach the position E where the coil spring 39 is substantially opened. At this time,
The operation body 5 is located at the operation position, and the operation body 5 can be rotated. The state is shown in FIG.

FIGS. 7 (c) to 7 (e) show the end surface 6 of the engaging projection when the operating body 5 moves from the operated state to the stored state.
1A shows the positional relationship between the engaged protrusion 42 of the spindle 26. When the operating body 5 is pressed from the operating state in which the operating body 5 protrudes in FIG. 7C, the end surface 61a of the engagement protrusion is
As shown in FIG. 7D, it slides downward (position F). Further, when the operating body 5 is pressed, the drive teeth 27 come into contact with the drive slope 41, the spindle 26 rotates, and the end surface 61a of the engaging projection moves to the right in the figure (position G). Here, when the pressing force of the operating body 5 is released, the operating body 5 is pushed back upward by the urging force of the coil spring 39, and the engaging projection 61 abuts the inclined guide surface 45 of the engaged projection 42. (Position H), slide on it, and reach the position I (Position A) while slightly rotating the spindle 26. In this state, the operating body 5 is located at the storage position. The state is shown in FIG.

The spindle 26 and the engaging projection 6 of the operating body 5
Since 1 operates in this way, it is possible to switch between the operation position where the operation body 5 projects from the storage section 2 and the storage position inside the storage section 2 by a simple operation of pushing in the front end of the operation body 5. You can

The spindle 26 is fixed by fitting a spire-shaped tip into a circular fitting hole 54 formed in the bottom 40 of the case 4. The outer diameter between the engaged projections 42, 42 on the surface of the spindle 26 and the inner diameter of the cylindrical body of the operating body main body 17a are substantially the same, and the spindle 26 is inserted into the operating body 5. The tip of the operating body 5 will not rattle. At this time, the spindle 26 moves the operating body 5
It acts as a rattling prevention unit that prevents rattling.

The distal end portion 17a of the main body of the operating body penetrates an elongated hole 46 formed in the locking plate 6. The long hole 46 is formed as shown in FIG. 1, and an engagement receiving tooth 24b that engages with the engagement tooth 24a of the operating body 5 is formed on one side of the long hole 46. By rotating the operating body 5, the engaging teeth 24a
The engaging tooth 24b engaged with is driven, and the locking plate 6 slides between the projecting position and the retracted position. This engaging tooth 24a
And the engagement receiving teeth 24b are the same in number, and the locking plate 6 is assembled in such a manner that the engagement teeth 24a located at the end and the engagement receiving teeth 24b engage with each other, so that the locking plate 6 is at the protruding position or the retracted position. In this case, the position of the operating body 5 can be made uniform. The lock plate 6 has a rectangular outer shape and is inserted into the slit 55 provided in the case 4. One end of the locking plate 6 penetrates the closing hole 62 of the box 63 at the protruding position,
At that time, a taper 47 is formed at the end portion so that it can be smoothly penetrated.

The case 4 forms a storage part 2 which communicates from the front side to the back side, a hook part 48 is formed around the storage part 2, and the storage part is formed in a through hole formed in the door 3. From the front side of the door 3 and the case main body 7 arranged on the back side of the door 3 with the front side of the door 2 and the hook portion 48 positioned, the edge 12 engaging around the through hole of the door 3 and the front side of the door 3. The cover body 8 has a hooked portion 49 hooked on the hooking portion of the case body 7, and is attached to the case body 7 in a state where the operating body 5 is prevented from coming off.

As shown in FIG. 8, the case body 7 includes a bottomed cylindrical case body lower end portion 50 and a case body lower end portion 5.
Slit 5 located above 0 and through which the locking plate 6 penetrates
5, a slit forming portion 51 that forms the periphery of 5, and an annular inner wall 10 that is located above the slit forming portion 51 and that is located outside the annular inner wall 10 and that forms a hooking portion. There is. The inner peripheral wall 10 and the case body lower end portion 50 form a part of the housing portion 2 in which the operating body 5 is housed.

At the lower end 50 of the case body having a bottomed cylindrical shape,
A pedestal 53 is formed on the bottom and a fitting hole 54 is formed in the center thereof. The tip of the steeple-shaped spindle 26 is fitted into the fitting hole 54 of the pedestal 53.

Lower end 50 of the case body and slit forming part 5
A reinforcing rib 59 as shown in FIG. 8B is formed between the two. The outer shape of the slit forming portion 51 is shown in FIG.
As shown in (a), it has a substantially rectangular shape, and a slit 55 having a sectional shape shown in FIG. 8 (c) is formed so as to penetrate therethrough. The locking plate 6 is arranged so as to penetrate the slit 55, is held by the slit forming portion 51, and is slidable in the linear direction.

The inner peripheral wall 10 formed on the upper side of the slit forming portion 51 has an annular shape, and the tip of the inner peripheral wall 10 has
When the lock plate 6 is in the protruding position and the retracted position,
A rotation blocking portion 13 that blocks the rotation of the operating body 5 by contacting the ear piece 9 is formed. Further, one side 11a of the guide groove is connected to one rotation preventing portion 13a with which the ear piece 9 abuts when the locking plate 6 is in the protruding position, and the locking plate 6 is in the retracted position. A rotation guide wall 14 for guiding the ear piece 9 and maintaining the protruding position of the operating body 5 is formed from the other rotation preventing portion 13b with which the ear piece 9 abuts to the other side 11b of the guide groove. .

The movement of the operating body 5 will be described with reference to FIG. 9 focusing on the movement of the ear piece 9. When the operating body 5 is in the housed state, the ear piece 9 is located in the guide groove 11 and below in the figure. At this time, the lock plate 6 engaged with the operating body 5 is located at the protruding position, and the door 3 is closed. By pressing the operating body 5, the spindle 26 rotates and the coil spring 3 compressed by the spindle 26
9 is released and the operating body 5 is pushed out. At that time, the ear piece 9 once moves downward in the guide groove 11 and then slides to the front surface side. FIG. 9 shows a state after sliding. At this time, one side surface of the ear piece 9 is in contact with the one rotation preventing portion 13a, and the operating body 5 can rotate only clockwise. When the operating body 5 is rotated clockwise, the ear piece 9 slides along the upper end surface of the rotation guide wall 14 and contacts the other rotation blocking portion 13b. At this time, the locking plate 6 engaged with the engaging teeth 24a of the operating body 5 is driven to the retracted position, and the door 3 is opened. Further, in the operation, since the ear piece 9 is located outside the inner wall of the storage section 2 and abuts on the rotation guide wall 14, the operation body 5 does not move in the immersing direction, and the operation is performed. It's easy.

Further, the rotation blocking portion 13 is formed with a pair of fixing holes 56 into which the locking rods 35 of the locking portion 16 are inserted. Although the upper end of the fixing hole 56 is open, it is closed by attaching the lid body 8. The locking rod 35 has the fixing hole 5
In the locked position inserted in 6, the locking rod 35 and the fixing hole 56 engage with each other to prevent the operation body 5 in the storage position from rotating and protruding.

The mounting wall 52 is formed in an annular shape so as to surround the outside of the inner peripheral wall 10 as described above. On the mounting wall 52, a hooking portion 48 formed of a square hole is formed. The hooked portion 48 engages with a hooked portion 49 of the lid 8 described later. Further, recesses 57 are formed at four locations on the mounting wall 52, and projections 58 arranged at corresponding positions on the back surface side of the lid body 8 are fitted therein.

As shown in FIG. 10, the lid 8 has a lid main body 60 forming the front side of the lid 8, an edge portion 12 penetrated by a through hole of the door 3, and a hook portion of the case main body 7. It is constituted by a hooked portion 49 that engages with 48.

The outside of the front surface of the lid main body 60 is gradually inclined toward the front surface side of the door 3. This makes it difficult for the lid 8 to be touched by the hand when the operation body 5 is rotated, and the rotation operation of the operation body 5 is facilitated. A stepped through hole is formed inside the lid body 60 to form the front side of the storage section 2. The tip of the inner peripheral wall 10 of the case body 7 is brought into contact with this step.

An annular edge portion 12 is formed on the back surface of the lid body 8, a part of which is cut out, and a hooked hooked portion 49 having a wedge-shaped tip is formed therein. In the assembled state, the edge portion 12 is fitted on the outside of the rotation blocking portion 13 and the rotation guide wall 14. Further, the tip portion holds the ear piece 9 between the tip portion and the tip of the rotation guide wall 14. At this time, a gap is formed between the edge portion 12 and the rotation guide wall 14 so that the ear piece 9 can freely slide, and when the operation body 5 is rotated, the gap is formed. The piece 9 slides. As a result, the operation body 5 can be smoothly rotated.

In the lid body 8, the hooked portion 49 has the case body 7
It engages with the hooking part 48 and is integrated with the case body 7.
Further, a U-shaped notch is also formed in the through hole of the door 3 at a position corresponding to the hooked portion 49. Further, on the back surface of the lid body 8, convex portions 58 that are fitted into the concave portions 57 of the case body 7 are formed at four locations. The convex portion 58 is fitted into the concave portion 57, and is inserted into the concave portion formed around the through hole of the door 3. As a result, it is possible to prevent the lid body 8 and the case body 7 from rotating with respect to the door 3, and the mounting direction of the main door closing tool 1 can be made constant.

The procedure for assembling the door closing tool 1 will be described. First, the lock plate 6 is laterally inserted into the slit 55 of the case body 7. Next, the spindle 26 and the coil spring 39 are arranged inside the case body 7. Then, the operating body 5 in which the locking portion 16, the spring 36, and the locking rod 35 are previously arranged inside the front cover 19 is arranged inside the case body 7. At this time, the spindle 26 is inserted into the distal end portion of the operating body 5, and the distal end of the operating body 5 is pivotally supported by this.
Rattling can be prevented. When the operating body 5 is inserted, the engaging teeth 24a formed on the operating body 5,
The engagement receiving teeth 24b of the lock plate 6 are engaged. Then, the case body 7 and the operating body 5 are brought into contact with the door 3 from the back side.
Then, the lid 8 is attached from the front surface side of the door 3, and the attachment of the door closing tool 1 is completed. At the time of attaching the lid body 8, the work is completed only by engaging the hooked portion 49 of the lid body 8 with the hooking portion 48 of the case body 7, so that the attaching work can be simplified.

In the door closing tool 1 of this embodiment, the front cover 19 forming the front end portion of the operating body 5 has a substantially cylindrical shape,
In addition, the operating body 5 rotates about the same center line as the spindle 26 provided at the center of the storage section 2. Thereby, as shown in FIG. 3, the turning operation of the operating body 5 can be performed within the front surface area of the storage section 2 of the door closing tool 1. Therefore, the rotating operation of the operating body 5 can be performed in the front surface area of the storage section 2 and a small area around the front surface. As a result, other devices can be arranged in the door 3 relatively close to the operating body 5, and the door 3 can be made smaller thereby, and the box 63 itself can be made smaller. Can contribute.

The front cover 19 at the front end of the operating body 5 is
Although it is formed in a cylindrical shape, it may be a polygon such as a hexagon or an octagon.

[0062]

According to the first aspect of the present invention, in the operation of rotating the operating body for projecting and retracting the locking plate for closing and opening the door, the hand operating the operating body rotates only to that position. This has the effect of not requiring a large space around.

According to the second aspect of the present invention, when the operating body is in the operating position, the operating body does not come off from the case, and the operating body is inserted into the housing portion of the case body from the front side, and then the operating body is inserted. By mounting the lid, the operating body can be arranged, and the work of attaching the operating body can be simplified.

According to the third aspect of the present invention, it can be easily recognized that the lock plate for closing the door is in the protruding position and the retracted position, respectively, and the operation of closing and opening the door becomes easy.

According to the fourth aspect of the present invention, the operating body does not unexpectedly retract into the storage portion, and the operation of the operating body for projecting and retracting the locking plate is facilitated.

According to the fifth aspect of the present invention, when the operation body is rotated, the lid is less likely to be touched by the hand, and the rotation operation of the operation body is facilitated.

According to the sixth aspect of the present invention, when the operating body is rotated, the operation body becomes less slippery, the rotating operation of the operating body is facilitated, and the operation of projecting and retracting the locking plate is easily performed. be able to.

According to the invention of claim 7, the operating body can be fixed at the storing position by locking the operating body at the storing position by rotating the key, and the operating body is operated unnecessarily. Can be prevented.

According to the eighth aspect of the present invention, when the key is inserted into the locking hole to perform the locking or unlocking operation, when the locking portion is at a position other than the locking position and the unlocking position, the key is pushed through the locking hole. I can't pull it out. Thus, when the key is operated, the locked position and the unlocked position can be clarified, so that the locking and unlocking with the key can be reliably performed.

According to the invention of claim 9, the locked position and the unlocked position of the key can be easily discriminated.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a door closing tool according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing the door closing tool, where (a) is a case where the operating body is in a storage position and (b) is a case where the operating body is in an operating position.

3A and 3B are plan views showing the door closing tool, where FIG. 3A is a case where the locking plate is in a protruding position, and FIG. 3B is a case where the locking plate is in a retracted position.

FIG. 4 is a longitudinal sectional view and FIG. 4B is a bottom view showing an operating body of the door closing tool.

5A and 5B show movements of a cam provided in a locking part of the door closing tool. FIG. 5A is a case where the locking part is in a locking position, and FIG. 5B is a case where the locking part is in an unlocking position.

FIG. 6 is a plan view showing a rotation state of a lock hole of the door closing tool.

FIG. 7 is a development view showing the positional relationship between the engaged projection of the spindle and the end surface of the engagement projection of the operating body in each process of rotating the spindle.

FIG. 8 is a plan view showing the case body of the door closing tool, FIG. 8 (b) is a vertical cross-sectional view, and FIG. 8 (c) is a partially cutaway front view.

FIG. 9 is a perspective view showing movements of an operating body and a lock plate arranged in a case body of the door closing tool.

FIG. 10 is a front view with a part cut away, showing a lid of the door closing tool, and FIG.

FIG. 11 is a front view and (b) is a bottom view showing a state in which the door closing device is provided.

FIG. 12 is a horizontal cross-sectional view showing a state in which the door is closed by the door closing tool.

FIG. 13 is a perspective view showing a conventional door closing tool.

[Explanation of symbols]

1 Door closure 2 storage 3 doors 4 cases 5 operating body 6 lock plate 7 Case body 8 lid 9 ear pieces 10 Inner wall 11 Guide groove 12 edges 13 Rotation blocking part 14 Rotation guide wall 15 Locking holes 16 Locking part 17 Control body 18 insertion holes 19 front cover 20 Large diameter part 21 Small diameter part 22 Identification hole 23 Identification display

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H05K 5/03 H02B 1/30 E05B 65/06 E05B 41/00

Claims (9)

(57) [Claims] 1. A case which forms a storage part communicating from the front side to the back side and is attached in a state of penetrating a door, and a front face which is arranged so as to be urged in a direction projecting to the storage part of the case. Each time the user pushes in, the front surface is held in the operating position protruding from the storage portion or the storage position stored in the storage portion, and the operation body is rotatable within the area of the front surface of the storage portion when in the operating position. And a locking plate for locking and opening the door by protruding and retreating in conjunction with the turning operation of the operating body. 2. The case main body, which has an inner peripheral wall for accommodating an operating body therein, and is arranged on the back side of the door,
A lid disposed on the front surface side of the case body on the front surface side of the door, and the operation body is provided with an ear piece projecting outward from the inner circumference of the housing portion. A guide groove is formed on the inner peripheral wall for guiding the ear piece between the storage position and the operating position of the operating body, and the inner peripheral wall of the case main body is in the lid body in a state where the operating body is in the operating position. The door closing device according to claim 1, wherein an edge portion for slidably holding the ear piece is formed between the door closing tool and the tip of the door closing member. 3. A rotation blocking portion is formed at the tip of the inner peripheral wall to block the rotation of the operating body when the locking plate is in the protruding position and the retracted position, respectively, and the ear piece abuts on the locking plate. The door closing tool according to claim 1 or 2, wherein the door closing tool is provided. 4. The ear block is in a retracted position while one side of the guide groove is connected to one rotation preventing portion with which the ear piece abuts when the locking plate is in the protruding position, and the locking plate is in the retracted position. 2. A rotation guide wall that guides the ear piece and maintains the protruding position of the operating body is formed from the other rotation blocking portion with which the piece abuts to the other side of the guide groove. Two
Or the door closing tool described in 3. 5. The lid body is characterized in that the outside of the front surface thereof is gradually inclined toward the front surface side of the door.
The door closing tool described in 3 or 4. 6. The door closing device according to claim 1, wherein a side surface of the front end side of the operating body is formed in a substantially saw-toothed shape to prevent slippage. . 7. A lockable portion is formed on the front surface of the operating body so as to have a locking hole for a key for preventing the operating body in the storage position from protruding. The door closing tool according to claim 1, 2, 3, 4, 5 or 6. 8. The operating body, which is provided in a storage portion and drives a locking plate, the operating body, the locking portion having a locking hole provided on the front side of the operating body, A front cover which has an insertion hole through which a key is inserted corresponding to the locking hole of the locking portion and which holds the locking portion rotatably between itself and the operating body, wherein the insertion hole is A large diameter part that allows the tip of the key to pass through the insertion hole when in the locked and unlocked positions, and the tip of the key that passes through the insertion hole when the locking part is in a position other than the locked and unlocked positions The door closing tool according to claim 7, wherein the door closing tool is formed in a shape having a small diameter portion that makes it impossible. 9. An identification hole is formed in the front cover, and the locking portion is provided with an identification display for identifying when the locking portion faces the identification hole and is in the unlocked position. The door closing tool according to claim 8, wherein the door closing tool is provided.